An alien virus decimates humanity, leaving many adults dead, or worse, in a zombie-like state. Manipulated and unleashed by the world's elite and powerful, societies and economies came crashing down. However, children under the age of sixteen were not infected. While scratching a living off the land, a momentary mistake infect a robotics engineer. Now, fearful of what he might become, he sends his two young children on a journey to the west towards a rumored sanctuary, free of the virus. On their own, the children barely survive in the wilderness on the run from infected humans, and worse, alien abominations sent to root out the remnants of humanity.